Zinc Plated Steel, Single Split Collar 12mm bore x 28mm O.D.

supplied with clamp bolt

Dimensions in mm
Tolerances  Diameter A + 0.07mm / + 0.00mm Diameter B + 0.20 / - 0.20mm Length C + 0.08mm / - 0.25mm
Stock No Bore A Diameter B Width C Clamp Bolt WHCASB12Z 12 28 11 M4X12